Hi ..I currently have my passenger seat out(stereo project)...I have a 97 reg cab with a 60/40 bench..All I need is the distance between the back wall of a reg cab to the back of the center arm rest/console(when down)on the 60 part of the 60/40,When the passenger seat is all the way back..seeing if my amp will fit standing upright against back wall of cab..Thanks for any help...

 

With the passenger seat all the way back, you have about 2 1/4" from the top of the armrest, to a lip that protrudes from under the window. Below this lip though, you have about 4".

This is for a 99 XLT with a regular cab.